Archive for the ‘energy’ category: Page 6

Aug 3, 2022

Why The High Plains Turns Off Its turbines To Limit Wind Production While The Texas Power Grid Is Stressed

Posted by in category: energy

While wind farms in the region could help power and lower energy costs for at least 9 million homes, significant infrastructure upgrades would be needed to supply electricity from the region to other parts of the state.

Aug 3, 2022

This tiny camera can show the world from a bug’s point of view

Posted by in categories: electronics, energy

Steerable arm helps save energy while capturing panoramic views.

Aug 2, 2022

This giant ‘water battery’ under the Alps could be a game-changer for renewable energy in Europe

Posted by in categories: energy, sustainability

? Hydroelectric generation?

New pumped storage hydropower facility Nant de Drance uses state-of-the-art technology to store renewable energy for on-demand use. It could play a vital role in stabilizing Europe’s grid as the continent transitions to renewable energy.

Continue reading “This giant ‘water battery’ under the Alps could be a game-changer for renewable energy in Europe” »

Aug 2, 2022

A flexible device that harvests thermal energy to power wearable electronics

Posted by in categories: energy, health, wearables

Wearable electronics, from health and fitness trackers to virtual reality headsets, are part of our everyday lives. But finding ways to continuously power these devices is a challenge.

University of Washington researchers have developed an innovative solution: the first-of-its kind flexible, wearable thermoelectric device that converts to electricity. This device is soft and stretchable, yet sturdy and efficient—properties that can be challenging to combine.

The team published these findings July 24 in Advanced Energy Materials.

Aug 1, 2022

Study finds nickelate superconductors are intrinsically magnetic

Posted by in categories: energy, materials

Electrons find each other repulsive. Nothing personal—it’s just that their negative charges repel each other. So getting them to pair up and travel together, like they do in superconducting materials, requires a little nudge.

In old-school superconductors, which were discovered in 1911 and conduct electric current with no resistance, but only at extremely , the nudge comes from vibrations in the material’s atomic lattice.

But in newer, “unconventional” superconductors—which are especially exciting because of their potential to operate at close to room temperature for things like zero-loss power transmission—no one knows for sure what the nudge is, although researchers think it might involve stripes of electric charge, waves of flip-flopping that create magnetic excitations, or some combination of things.

Jul 31, 2022

Arup unveils world’s first algae-powered building

Posted by in categories: energy, engineering, sustainability

Circa 2013 😃

News: the world’s first building to be powered entirely by algae is being piloted in Hamburg, Germany, by engineering firm Arup.

The “bio-adaptive facade”, which Arup says is the first of its kind, uses live microalgae growing in glass louvres to generate renewable energy and provide shade at the same time.

Continue reading “Arup unveils world’s first algae-powered building” »

Jul 31, 2022

Innovative Wave Energy Ocean Power Plant Energy From The Waves

Posted by in categories: energy, innovation

Eco Wave Power developed an innovative technology for production of clean electricity from ocean and sea waves. EWP’s innovative technology has been recognized as a “Pioneering Technology” by the Chief Scientist of the Energy Ministry of Israel and received an Efficient Solution label from Solar Impulse Foundation.

source/image(PrtSc): EcoWavePower.

Jul 31, 2022

Vanadium Is Key To Insanely Fast Charging and Long Life in Li-Ion Batteries of the Future

Posted by in categories: energy, futurism

Li-Ion battery research concentrates mainly on increasing energy density, but TyFast goes in the opposite direction. The company compromises battery capacity to offer insanely fast charging and a long life cycle.

Jul 30, 2022

Wireless Power Transfer Using Harvested Radio Frequency Energy with Magnetic Resonance Coupling to Charge Mobile Device Batteries

Posted by in categories: energy, mathematics

This research paper presents the design of a wireless power transfer (WPT) circuit integrated with magnetic resonance coupling (MRC) and harvested radio frequency (RF) energy to wirelessly charge the battery of a mobile device. A capacitor (100 µF, 16 V) in the RF energy harvesting circuit stored the converted power, and the accumulated voltage stored in the capacitor was 9.46 V. The foundation of the proposed WPT prototype circuit included two coils (28 AWG)—a transmitter coil, and a receiver coil. The transmitter coil was energized by the alternating current (AC), which produced a magnetic field, which in turn induced a current in the receiver coil. The harvested RF energy (9.46 V) was converted into AC, which energized the transmitter coil and generated a magnetic field. The electronics in the receiver coil then converted the AC into direct current (DC), which became usable power to charge the battery of a mobile device. The experimental setup based on mathematical modeling and simulation displayed successful charging capabilities of MRC, with the alternate power source being the harvested RF energy. Mathematical formulae were applied to calculate the amount of power generated from the prototype circuit. LTSpice simulation software was applied to demonstrate the behavior of the different components in the circuit layout for effective WPT transfer.

Jul 30, 2022

DARPA’S Hypersonic Air-breathing Weapon Concept achieves successful flight

Posted by in categories: energy, military

DARPA, in partnership with the U.S. Air Force, completed a free flight test of its Hypersonic Air-breathing Weapon Concept (HAWC) last week. The missile, built by Raytheon Technologies, was released from an aircraft seconds before its Northrop Grumman scramjet (supersonic combustion ramjet) engine kicked on. The engine compressed incoming air mixed with its hydrocarbon fuel and began igniting that fast-moving airflow mixture, propelling the cruiser at a speed greater than Mach 5 (five times the speed of sound).

The HAWC vehicle operates best in oxygen-rich atmosphere, where speed and maneuverability make it difficult to detect in a timely way. It could strike targets much more quickly than subsonic missiles and has significant kinetic energy even without high explosives.

“The HAWC free test was a successful demonstration of the capabilities that will make hypersonic cruise missiles a highly effective tool for our warfighters,” said Andrew “Tippy” Knoedler, HAWC program manager in DARPA’s Tactical Technology Office. “This brings us one step closer to transitioning HAWC to a program of record that offers next generation capability to the U.S military.”

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